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Zenker diverticula (ZD) are sac-like protrusions originating just proximal to the cricopharyngeus muscle (CPM). They are more common in older patients who present with dysphagia but may have aspiration and pulmonary compromise. Surgical treatment has evolved, formerly requiring an external incision and resection of the diverticulum but more recently being accomplished using laryngoscopy or flexible endoscopy to cut the septum between the diverticulum and the esophageal lumen while transecting the CPM.
In a multicenter, retrospective study, investigators examined clinical success and safety of a peroral endoscopic myotomy (POEM) approach to ZD (Z-POEM) in 75 patients. The procedure was deemed technically successful in 97% of cases and clinica…